I had 6/10 on Neil Young and 5/10 on Gangnam Style. That said, he claims "less than 9 is not meaningful". But by my calculations an 8/10 is significantly diffe

I had 6/10 on Neil Young and 5/10 on Gangnam Style. That said, he claims "less than 9 is not meaningful". But by my calculations an 8/10 is significantly different from chance alone; to some extent, 7/10 is as well. Suppose random guesses are drawn from a Binomial distribution -- each sample is an urn containing balls black and white (both equally likely) and we count how many white balls we can get. This is the CDF: people who get 1 answer right score better than only 1% of people. --- 1 0.0107422 2 0.0546875 3 0.171875 4 0.376953 5 0.623047 6 0.828125 7 0.945313 8 0.989258 9 0.999023 -- A "7" is almost at 95% significance.